19664.000000

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 1362816

約数和(自身を除く): 520623

約数列:

[1, 3, 9, 11, 33, 47, 99, 141, 181, 423, 517, 543, 1551, 1629, 1991, 4653, 5973, 8507, 17919, 25521, 76563, 93577, 280731, 842193]

約数ペア:

[(1, 842193), (3, 280731), (9, 93577), (11, 76563), (33, 25521), (47, 17919), (99, 8507), (141, 5973), (181, 4653), (423, 1991), (517, 1629), (543, 1551)]